The Queen's Bibliotheque is a unique building of the Swedish civilization (when led by Kristina) in Civilization VI: Gathering Storm. It is built in the Government Plaza district and requires a Tier 2 government (Merchant Republic, Monarchy, or Theocracy) and a Tier 1 government building (Ancestral Hall, Audience Chamber, or Warlord's Throne).
When playing as Kristina, Great Work slots become even more valuable, and the Queen's Bibliotheque plays to this strength better than any of the other buildings or Wonders in the game. Not only can you automatically theme this building once it is filled, it contains a whopping six slots, the most in the game. Your goal is to earn a Great Writer, a Great Artist, and a Great Musician as fast as possible to fill this building first, as it will become your main Culture and Tourism hub for the entire game.
"Bibliotheque" is the French word for a library, and as French was the vernacular language of culture from the Middle Ages through the Industrial Revolution, it is used here to reflect that history. The “Queen” in this case is in honor of Kristina of Sweden, who was a lavish patron of the arts and literature. Eleanor of Aquitaine was another notable patron of arts, especially the burgeoning troubadour tradition. Many other queens effectively used the soft power of her cultural patronage as tools of statecraft, sometimes gaining more than the king could on the battlefield.